New research findings help improve the energy efficiency of wireless mobile devices

Power-saving features of mobile phones and other handheld devices are nothing new. However, existing techniques do not explicitly focus on reducing power that is consumed when a client is actively communicating with the network. Given the high data rate demands of modern multimedia applications, active mode power consumption is expected to become a critical consideration for the development and deployment of future wireless technologies.

Andreev’s research results demonstrate that it is possible to reduce device power consumption by selecting optimized transmission power and bandwidth while considering the user’s current demand. Proximity to the base station and traffic load from other mobile devices should also be accounted for.

“The power efficient techniques should not compromise user experience, so data transmission methods must be designed to ensure that they do not cause users any unpleasant surprises in everyday use,” says Andreev. He also applies analytical modelling techniques and simulations to examine how the proposed transmission algorithms impact the perceived quality of service.

Additionally, Andreev’s dissertation explores new perspectives of using cooperative techniques in cellular networks. Special attention is given to small-scale battery-driven wireless devices used in smart grid deployments and other machine-to-machine systems.

“However, vulnerabilities indicated in the conventional system design may cause excessive power consumption and network entry delays,” argues Andreev.

Public defence of a doctoral dissertation on Tuesday, 21 August

Cand. Sc. Sergey Andreev’s doctoral dissertation in the field of communications engineering “Energy Efficient and Cooperative Solutions for Next-Generation Wireless Networks" will be publicly examined at the Faculty of Computing and Electrical Engineering of Tampere University of Technology (TUT) in room TB109 in the Tietotalo building (address: Korkeakoulunkatu 1 Tampere, Finland) on Tuesday, 21 August 2012 at 12:00.

The opponent will be Distinguished University Professor Anthony Ephremides (University of Maryland, USA). Professor Evgeni Kucheryavy from the Department of Communications Engineering at TUT will act as Chairman.

Sergey Andreev (27) comes from Russia and works as a researcher at the Department of Communications Engineering of TUT.

Further information: Researcher Sergey Andreev, ">sergey.andreev@tut.fi

http://dspace.cc.tut.fi/dpub/bitstream/handle/123456789/21120/andreev.pdf